Abstract:

The comparison of design parameters, operating parameters, instrument online analysis and offline sample analysis of ethylene plant shows that there are deviations in product indexes during production and there is still room for optimization and improvement of product yield and output. The TRIZ theory was applied to propose innovative solutions to existing problems, and Aspen digital software was used to build analog processes and comprehensive management software (reactor operation information monitoring). The operation law of rectification tower system and acetylene hydrogenation reactor was studied. The optimal control of process parameters was operated and controlled by APC control technology. The existing resources of ethylene plant were used to increase the yield of target products, laying a solid foundation for the long-term, full-load and optimal operation of the rectification system of ethylene plant.

Key words: TRIZ theory; rectification, olefin, yield